Site/Source EUI

What are Site Energy and Source Energy?
What are the Site-to-Source Conversion Factors?
My Source EUI improved, but my score went down. How is that possible?
What is EUI?
What is the COP for District Chilled Water?
Does source energy penalize certain types of fuel?
Am I penalized (or credited) based on the energy efficiency of the fuels used by my utility?
How are site and source energy affected by electric heating systems?
What are the historical Site-to-Source Conversion factors?
How do different heating systems affect my Site and Source EUI?